Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    06-07-2024 05:56

General

  • Target

    27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe

  • Size

    146KB

  • MD5

    27778b028fcd6a87de7f7d040c82097c

  • SHA1

    c32e909132b8d386b78aa537f775046d04268509

  • SHA256

    1c4d1b7d6eba4fc317664cfa42e77598a59bb0d98e6397e91d502556f4eae9cf

  • SHA512

    2ff50fed8ca8a32aad175c426b1d57ac1b6728515c9cd9c616e277ef0ee403f0190b3432f8ed6ac13846a38c4a8a652cf552b92e5f14757c8de9f2509884514b

  • SSDEEP

    3072:yJT1qWN9Ni7DG8/3hcRo080cABosZrxCQSLnXKS08xAFTvbyR:w1qWI7DJ/8cKosDXSxAAR

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Modifies firewall policy service 3 TTPs 4 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1192
      • C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2692
        • C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\27778b028fcd6a87de7f7d040c82097c_JaffaCakes118.exe"
          3⤵
          • Loads dropped DLL
          • Maps connected drives based on registry
          • Drops file in System32 directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2744
          • C:\Windows\SysWOW64\wmpbk86.exe
            "C:\Windows\SysWOW64\wmpbk86.exe" C:\Users\Admin\AppData\Local\Temp\27778B~1.EXE
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3044
            • C:\Windows\SysWOW64\wmpbk86.exe
              "C:\Windows\SysWOW64\wmpbk86.exe" C:\Users\Admin\AppData\Local\Temp\27778B~1.EXE
              5⤵
              • Modifies firewall policy service
              • Deletes itself
              • Executes dropped EXE
              • Adds Run key to start application
              • Maps connected drives based on registry
              • Drops file in System32 directory
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2784

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Windows\SysWOW64\wmpbk86.exe

      Filesize

      146KB

      MD5

      27778b028fcd6a87de7f7d040c82097c

      SHA1

      c32e909132b8d386b78aa537f775046d04268509

      SHA256

      1c4d1b7d6eba4fc317664cfa42e77598a59bb0d98e6397e91d502556f4eae9cf

      SHA512

      2ff50fed8ca8a32aad175c426b1d57ac1b6728515c9cd9c616e277ef0ee403f0190b3432f8ed6ac13846a38c4a8a652cf552b92e5f14757c8de9f2509884514b

    • memory/1192-33-0x0000000003D40000-0x0000000003D5E000-memory.dmp

      Filesize

      120KB

    • memory/1192-35-0x00000000025B0000-0x00000000025B1000-memory.dmp

      Filesize

      4KB

    • memory/2744-9-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2744-4-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2744-0-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2744-2-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2744-8-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2744-7-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2744-31-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2744-6-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2744-3-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2784-32-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB

    • memory/2784-36-0x0000000000400000-0x000000000044C000-memory.dmp

      Filesize

      304KB